6-phenyl-2,4-dihydro-1H-thieno[3,2-d][1,3]oxazine-2,4-dione 、
disodium;carbonate 、
溴甲苯 在
氮 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
反应 17.0h,
以912 mg (66.3%) of 1-benzyl-6-phenyl-1H-thieno[3,2-d][1,3]oxazine-2,4-dione were obtained as a pale yellow solid的产率得到1-benzyl-6-phenyl-2H-thieno[3,2-d][1,3]oxazine-2,4(1H)-dione